Optical Filter Bank Modeling and Design for Multi-Color Visible Light Communications
Multi-color visible light communication (MC-VLC) can achieve a multi-fold rate by taking advantage of multiple color channels. The optical filters for separating different colors are often designed for the normal incidence case only. However, the center wavelength (CWL) of the optical filter shifts...
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/9329045/ |
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| author | Pengfei Ge Xintong Ling Jiaheng Wang Xiao Liang Shuo Li Chunming Zhao |
| author_facet | Pengfei Ge Xintong Ling Jiaheng Wang Xiao Liang Shuo Li Chunming Zhao |
| author_sort | Pengfei Ge |
| collection | DOAJ |
| description | Multi-color visible light communication (MC-VLC) can achieve a multi-fold rate by taking advantage of multiple color channels. The optical filters for separating different colors are often designed for the normal incidence case only. However, the center wavelength (CWL) of the optical filter shifts as the angle of incidence (AOI) varies, leading to performance degradation. To address the issue caused by the CWL shift, we propose a novel concept of the optical filter bank that uses a group of narrow-band optical filters and divides the whole visible light spectrum into many narrow bands of wavelengths. The optical filter bank can flexibly combine the useful signal of each monochromatic color and effectively avoid the undesired interference, even if the CWL shifts. Based on the optical filter bank, we establish the channel model and signal model of the MC-VLC system, and then jointly design the linear precoding and equalization for MC-VLC. As illustrated by simulations, the proposed optical filter bank transceiver can achieve a high rate and stable performance at varying AOIs. |
| format | Article |
| id | doaj-art-8ea3f38992684cdebcdf9c3ef1eaf1f5 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-8ea3f38992684cdebcdf9c3ef1eaf1f52025-08-20T03:33:14ZengIEEEIEEE Photonics Journal1943-06552021-01-0113111910.1109/JPHOT.2021.30531779329045Optical Filter Bank Modeling and Design for Multi-Color Visible Light CommunicationsPengfei Ge0https://orcid.org/0000-0003-3645-3522Xintong Ling1https://orcid.org/0000-0001-7033-395XJiaheng Wang2https://orcid.org/0000-0002-9783-5471Xiao Liang3https://orcid.org/0000-0002-3064-6908Shuo Li4Chunming Zhao5https://orcid.org/0000-0002-2624-7322National Mobile Communications Research Lab, Southeast University, Nanjing, ChinaNational Mobile Communications Research Lab, Southeast University, Nanjing, ChinaNational Mobile Communications Research Lab, Southeast University, Nanjing, ChinaNational Mobile Communications Research Lab, Southeast University, Nanjing, ChinaNational Mobile Communications Research Lab, Southeast University, Nanjing, ChinaNational Mobile Communications Research Lab, Southeast University, Nanjing, ChinaMulti-color visible light communication (MC-VLC) can achieve a multi-fold rate by taking advantage of multiple color channels. The optical filters for separating different colors are often designed for the normal incidence case only. However, the center wavelength (CWL) of the optical filter shifts as the angle of incidence (AOI) varies, leading to performance degradation. To address the issue caused by the CWL shift, we propose a novel concept of the optical filter bank that uses a group of narrow-band optical filters and divides the whole visible light spectrum into many narrow bands of wavelengths. The optical filter bank can flexibly combine the useful signal of each monochromatic color and effectively avoid the undesired interference, even if the CWL shifts. Based on the optical filter bank, we establish the channel model and signal model of the MC-VLC system, and then jointly design the linear precoding and equalization for MC-VLC. As illustrated by simulations, the proposed optical filter bank transceiver can achieve a high rate and stable performance at varying AOIs.https://ieeexplore.ieee.org/document/9329045/Center wavelength (CWL) shiftlinear transceiver designoptical filter bankprecodervisible light communication |
| spellingShingle | Pengfei Ge Xintong Ling Jiaheng Wang Xiao Liang Shuo Li Chunming Zhao Optical Filter Bank Modeling and Design for Multi-Color Visible Light Communications IEEE Photonics Journal Center wavelength (CWL) shift linear transceiver design optical filter bank precoder visible light communication |
| title | Optical Filter Bank Modeling and Design for Multi-Color Visible Light Communications |
| title_full | Optical Filter Bank Modeling and Design for Multi-Color Visible Light Communications |
| title_fullStr | Optical Filter Bank Modeling and Design for Multi-Color Visible Light Communications |
| title_full_unstemmed | Optical Filter Bank Modeling and Design for Multi-Color Visible Light Communications |
| title_short | Optical Filter Bank Modeling and Design for Multi-Color Visible Light Communications |
| title_sort | optical filter bank modeling and design for multi color visible light x00a0 communications |
| topic | Center wavelength (CWL) shift linear transceiver design optical filter bank precoder visible light communication |
| url | https://ieeexplore.ieee.org/document/9329045/ |
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